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STMicroelectronics TSC2022IST
- Part No.:
- TSC2022IST
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TSC2022IST.pdf
- Description:
- 100 V, PRECISION, BIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:4,000
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Product details
Overview
TSC2022IST from STMicroelectronics is a precision bidirectional current sense amplifier with fixed 100 V/V gain, -4 V to +100 V input common-mode voltage range, 100 dB minimum CMR, ±150 µV max offset voltage, and AEC-Q100 qualification for automotive use in high-side/low-side battery monitoring and 48 V motor control systems.
For engineers reviewing the TSC2022IST datasheet, TSC2022IST pinout, TSC2022IST application, or TSC2022IST equivalent, this device supports accurate shunt-based current measurement under fast PWM transients, wide supply (2.7–5.5 V), and extended temperature (-40 °C to +125 °C) - critical for BMS, 48 V power tools, and automotive power distribution designs.
Technical Context
The TSC2022IST employs a zero-drift architecture with thin-film resistors to achieve 0.3% max gain error and 3.5 ppm/°C gain drift across -40 °C to +125 °C. Its integrated PWM enhancer detects fast common-mode transients to suppress output disturbance during switching events in motor drives and solenoid control.
It operates with dual reference inputs (VREF1/VREF2) enabling flexible output common-mode setting for unidirectional or bidirectional sensing, and delivers 350–700 kHz small-signal bandwidth depending on supply and load conditions while maintaining 0.01% linearity over full common-mode range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 100 V/V - enables precise amplification of low shunt voltages (e.g., 24 mV full-scale) for high-resolution current measurement. |
| Common-mode voltage | -4 V to +100 V - supports direct high-side sensing in 48 V systems without level-shifting or protection circuitry. |
| CMR | 100 dB min. - rejects noise from noisy power rails, essential for accurate current feedback in motor control. |
| Offset voltage | ±150 µV max. - ensures sub-mA error at 1 mΩ shunt, critical for battery charge/discharge monitoring accuracy. |
| Supply voltage | 2.7 V to 5.5 V - compatible with standard microcontroller I/O domains and automotive 3.3 V/5 V supplies. |
| Operating temperature | -40 °C to +125 °C - meets AEC-Q100 Grade 1 requirements for under-hood and battery-pack environments. |
| Bandwidth | 350–700 kHz - captures fast current transients in PWM-driven loads while maintaining stability with ≤1 nF capacitive load. |
Pinout & Package
Supplied in SO8 package (also available in MiniSO8 and TSSOP8); pin-compatible across TSC202x family. Thermal resistance RTHJA = 125 °C/W (SO8).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN-) | Negative input | Connects to shunt resistor low-side terminal; forms differential pair with IN+ for bidirectional sensing. |
| 2 (GND) | Ground reference | System ground return for internal biasing and output stage; must be low-impedance path to minimize noise coupling. |
| 3 (VREF2) | Reference voltage 2 | Configurable output common-mode setpoint; used with VREF1 to define unidirectional/bidirectional output swing. |
| 4 (NC) | No connect | Internally unused; must remain floating - no external connection permitted. |
| 5 (OUT) | Amplified output | Delivers 100×(IN+ − IN-) + VREF signal; drives ADC inputs or comparator stages directly. |
| 6 (VCC) | Positive supply | Power input for core amplifier and PWM enhancer; bypass with 100 nF ceramic capacitor near pin. |
| 7 (VREF1) | Reference voltage 1 | Second reference input; combined with VREF2 to set output offset and polarity for bidirectional operation. |
| 8 (IN+) | Positive input | Connects to shunt resistor high-side terminal; enables high-side current sensing up to +100 V common mode. |
Key Features
| Feature | Design Value |
|---|---|
| PWM rejection enhancement | Detects and compensates for fast ∆V/∆t common-mode edges (e.g., MOSFET switching), reducing output overshoot by >50% vs. standard amplifiers. |
| Zero-drift topology | Enables <0.5 µV/°C offset drift and stable 100 dB CMR across -40 °C to +125 °C - eliminates calibration drift in long-life systems. |
| Flexible output referencing | VREF1/VREF2 pins allow programmable output common-mode from GND to VCC, supporting single-supply ADC interfacing and bipolar current detection. |
| AEC-Q100 qualified | Qualified to Grade 1 (-40 °C to +125 °C), including ESD (2 kV HBM), thermal cycling, and lifetime reliability testing for automotive deployment. |
| High-frequency CMRR | Maintains ≥80 dB CMRR up to 100 kHz - critical for rejecting switching noise in 48 V DC-DC converters and inverter gate drivers. |
Applications
| Battery Management System | 48 V Power Tools |
|---|---|
|
Use Scenario: Real-time cell stack current monitoring during charge/discharge cycles in 12–16S Li-ion packs. IC Role / Device Role / Timing Role: Bidirectional current sense amplifier measuring ±200 A via 0.5 mΩ shunt, referenced to pack mid-point for isolation-free sensing. Use Value: ±150 µV offset ensures <±0.3 A absolute error at 200 A; 100 V common-mode headroom accommodates transient voltage spikes during contactor switching. |
Use Scenario: Motor phase current feedback in cordless drill inverters operating from 48 V nominal battery. IC Role / Device Role / Timing Role: High-side current sensor placed between battery+ and inverter half-bridge, rejecting PWM noise from gate drivers. Use Value: Integrated PWM enhancer reduces output disturbance during 20–50 kHz switching; 350 kHz bandwidth captures torque transients without phase lag. |
| Automotive 48 V Mild Hybrid | Industrial Motor Control |
|
Use Scenario: Load current monitoring in 48 V starter-generator control units with regenerative braking capability. IC Role / Device Role / Timing Role: Bidirectional amplifier with VREF1/GND and VREF2/VCC configuration to generate ±2.5 V output for 12-bit ADC input. Use Value: AEC-Q100 qualification ensures reliability in under-hood environments; -4 V common-mode tolerance handles inductive kickback during load dump. |
Use Scenario: Phase current sensing in servo drives for CNC machines using 48 V bus and IGBT-based inverters. IC Role / Device Role / Timing Role: Low-drift current monitor placed on low-side shunt, delivering stable feedback to position/velocity loop controllers. Use Value: 0.5 µV/°C offset drift prevents thermal-induced current measurement drift during extended runtime; 100 dB DC CMR rejects bus ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional current sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA240A1QDRQ1 | 20 V/V gain (fixed), 80 V common-mode, 120 dB CMR, higher quiescent current (2.4 mA) | Better CMR but lower common-mode range; requires external gain stage for 100× scaling | Select when ultra-high CMR dominates over common-mode headroom and gain flexibility. |
| MAX40056ATA+T | 100 V/V gain, 65 V common-mode, 105 dB CMR, rail-to-rail output, no VREF pins | Lacks dual-reference flexibility; limited to unidirectional sensing unless external level shift used | Choose when simplified single-supply interface is prioritized over bidirectional configurability. |
Compared with INA240A1QDRQ1 and MAX40056ATA+T, the TSC2022IST uniquely combines 100 V common-mode tolerance, true bidirectional operation via dual VREF pins, and AEC-Q100 qualification - making it optimal for 48 V automotive BMS and high-reliability industrial power tools where both voltage headroom and polarity flexibility are mandatory.
Availability
TSC2022IST is available at Aetrix Electronics and suitable for battery management systems, 48 V power tools, and automotive mild hybrid control requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for TSC2022IST includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, power, MCU, and sensor solutions for automotive, industrial, and consumer markets.
The TSC202x series is part of ST's precision analog portfolio, engineered specifically for high-accuracy, high-voltage current sensing in next-generation 48 V architectures - emphasizing robustness, low drift, and PWM noise immunity.
FAQ
What is the maximum shunt voltage the TSC2022IST can accurately measure?
The TSC2022IST supports a Vsense operating range of 23.9–24.1 mV (typ./max) at ≤0.3% gain error, corresponding to full-scale input for its 100 V/V gain. This enables precise measurement of currents up to ±24 A with a 1 mΩ shunt or ±2.4 A with a 10 mΩ shunt, while maintaining specified linearity and offset performance across temperature.
How does the PWM enhancer function in the TSC2022IST?
The PWM enhancer is an internal circuit that detects rapid dV/dt on the input common-mode node and dynamically adjusts internal compensation to suppress output disturbance. It reduces overshoot by up to 60% during 48 V bus switching events, as verified in Figures 39–42 of DS14393, without requiring external filtering or layout mitigation.
Can the TSC2022IST be used for unidirectional current sensing only?
Yes - configure VREF1 to GND and VREF2 to VCC (or vice versa) to set output common-mode to mid-supply, producing a 0–VCC unidirectional output proportional to current magnitude. The device retains full 100 V common-mode range and 100 dB CMR in this mode, unlike many competitors requiring external op-amps for level shifting.
Is the SO8 package of TSC2022IST RoHS and REACH compliant?
Yes - the TSC2022IST in SO8 package meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, with lead-free terminations and halogen-free molding compound. Full compliance documentation, including substance declarations and test reports, is available through STMicroelectronics' Quality Portal upon request.
TSC2022IST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- TSC2022
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 1
- Output Type:
- Single-Ended
- Slew Rate:
- 3.9V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 700 kHz
- Current - Input Bias:
- 200 µA
- Voltage - Input Offset:
- 400 µV
- Current - Supply:
- 1.8mA
- Current - Output / Channel:
- 14.5 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MiniSO
TSC2022IST FAQ
1.How can I place an order for TSC2022IST through Aetrix?
Please submit a Request for Quotation (RFQ) for TSC2022IST on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TSC2022IST reliable?
The price and inventory of TSC2022IST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSC2022IST is usually 5 days.
3.What payment methods are accepted for TSC2022IST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSC2022IST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSC2022IST?
TSC2022IST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSC2022IST order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TSC2022IST?
For technical support, including TSC2022IST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSC2022IST requirements.
6.How does Aetrix verify that TSC2022IST is sourced from the original manufacturer or authorized distributors?
All TSC2022IST products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TSC2022IST meets industry standards.
7.What is the process for return or replacement of TSC2022IST?
All TSC2022IST units undergo pre-shipment inspection (PSI). If there is an issue with TSC2022IST, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TSC2022IST part is unused and in its original packaging.
Return procedure for TSC2022IST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSC2022IST Tags
-
LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
Texas Instruments
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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